2 Kings 10:1-10

1 Now Ach'av had seventy sons in Shomron. Yehu wrote letters, and sent to Shomron, to the rulers of Yizre`el, even the Zakenim, and to those who brought up [the sons of] Ach'av, saying,
2 Now as soon as this letter comes to you, seeing your master's sons are with you, and there are with you chariots and horses, a fortified city also, and armor;
3 look you out the best and meet of your master's sons, and set him on his father's throne, and fight for your master's house.
4 But they were exceedingly afraid, and said, Behold, the two kings didn't stand before him: how then shall we stand?
5 He who was over the household, and he who was over the city, the Zakenim also, and those who brought up [the children], sent to Yehu, saying, We are your servants, and will do all that you shall bid us; we will not make any man king: you do that which is good in your eyes.
6 Then he wrote a letter the second time to them, saying, If you be on my side, and if you will listen to my voice, take the heads of the men your master's sons, and come to me to Yizre`el by tomorrow this time. Now the king's sons, being seventy persons, were with the great men of the city, who brought them up.
7 It happened, when the letter came to them, that they took the king's sons, and killed them, even seventy persons, and put their heads in baskets, and sent them to him to Yizre`el.
8 There came a messenger, and told him, saying, They have brought the heads of the king's sons. He said, Lay you them in two heaps at the entrance of the gate until the morning.
9 It happened in the morning, that he went out, and stood, and said to all the people, You are righteous: behold, I conspired against my master, and killed him; but who struck all these?
10 Know now that there shall fall to the eretz nothing of the word of the LORD, which the LORD spoke concerning the house of Ach'av: for the LORD has done that which he spoke by his servant Eliyah.
The Hebrew Names Version is in the public domain.